The "SMS Partner" module proposes to effect SMS mailings automatically. You create your account, you integrate your automation and go!
You can find more information here.
How this SMS Partner + TrueMail integration works
1. Add new record to a SMS Partner account
2. Zapier sends the email to be verified with TrueMail
3. Zapier updates the existing SMS Partner record with TrueMail result code in a custom field
SMS Partner Triggers
The test trigger
Send new alert SMS